2015

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	1536937	2403	-	2436	=	-33	*	(129	/	403)	=	-10.56327542
4	1536938	2432	-	2485	=	-53	*	(126	/	403)	=	-16.57071956
5	1536941	2447	-	2528	=	-81	*	(148	/	403)	=	-29.74689822
Step 4	SUM Weighted Distance From Standard to get 2015 Difference From Standard for Jefferson Elementary											-57

2016

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	48145	2404	-	2436	=	-32	*	(117	/	372)	=	-10.06451613
4	48146	2449	-	2485	=	-36	*	(135	/	372)	=	-13.0645161
5	48149	2473	-	2528	=	-55	*	(120	/	372)	=	-17.74193548
Step 4	SUM Weighted Distance From Standard to get 2016 Difference From Standard for Jefferson Elementary											-41

2017

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	49472	2409	-	2436	=	-27	*	(120	/	370)	=	-8.75675675
4	49475	2453	-	2485	=	-32	*	(117	/	370)	=	-10.11891891
5	49476	2474	-	2528	=	-54	*	(133	/	370)	=	-19.41081079
Step 4	SUM Weighted Distance From Standard to get 2017 Difference From Standard for Jefferson Elementary											-38

2018

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	49486	2398	-	2436	=	-38	*	(88	/	318)	=	-10.51572324
4	49489	2453	-	2485	=	-32	*	(122	/	318)	=	-12.27672954
5	49490	2476	-	2528	=	-52	*	(108	/	318)	=	-17.66037733
Step 4	SUM Weighted Distance From Standard to get 2018 Difference From Standard for Jefferson Elementary											-40

2019

Step 1				Step 2				Step 3
Get Mean Scale Score from line numbers in this data file.				Subtract 'met min' Scale Score. from Mean Scale Score to get Distance From Standard				Multiply Distance From Standard by proportion of students in grade.
Grade	Line number	Mean Scale Score	-	Scale Score: met min	=	Distance from standard	*	(Students tested in grade	/	Students) tested in school	=	Weighted Distance From Standard
3	49685	2423	-	2436	=	-13	*	(92	/	291)	=	-4.10996563
4	49686	2438	-	2485	=	-47	*	(86	/	291)	=	-13.89003436
5	49687	2459	-	2528	=	-69	*	(113	/	291)	=	-26.79381442
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Jefferson Elementary											-45

Last steps

Compute the average

2015	2016	2017	2018	2019	Sum	Average
-57	-41	-38	-40	-45	-221.0	-44.2

Compute the Upper Control Limit

Simply compute the standard deviation and multiply by 3 and add to the average: -23.2

Compute the Lower Control Limit

Simply compute the standard deviation and multiply by 3 and subtract from the average: -65.2

For the lines, you have the data necessary to plot the chart.

Very last step

The percent of students getting a Free or Reduced Price Meal comes from the following sources:

	2015	2016	2017	2018	2019
Percent	76%	80%	74%	76%	74%
Data source	2015 data file	2016 data file	2017 data file	2018 data file	2019 data file